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Patents > Year filed: 1908 & National tech categories: FR 6.4 & Number of claims: 2-4

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None (4) · Robert Esnault-Pelterie (3) · Albert Jouveneau (2) · Jean-Baptiste-Émile Dorand (2) · Jacques Ravelli (2) · Hippolyte Chevron (2) · Paul Frederik Degn (2)
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None (4) · Robert Esnault-Pelterie (3) · Jean-Baptiste-Émile Dorand (2) · Jacques Ravelli (2) · Hippolyte Chevron (2) · Paul Frederik Degn (2) · Albert Jouveneau (2)
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